Door-operating mechanism.



F L. CHAPMAN, IR:- DOQR OPERATING MECHANISM. APPLICATION FILED MAR. 21.1917.

l ,247,50%. Patented Nov. 20, 191?.

3 SHEETS-SHEET I.

F L. CHAPMAN, JR.

DOOR OPERATING. MECHANISM.

APPLICATION FlLED M311. 1911.

1,%?,5%, Patented Nov. 20, 191?.

2 SHEETSSHEET 2- 55 i illustrating a rod for manually operating timer eaFREDERICK 'L. CHAPMAN, JIM, OF CHICAGO, ILLINOIS.

DOOR-OPERATING MECHANISM.

Application filed March 21, 1917.

To all whom it may concern.- Be it known that I, FREDERICK L. CHAP- MAN,Jr., a citizen of the United States, residing at Chicago, inthe countyof Cook and State of Illinois, have invented certain new and usefulImprovements in Door- Operating Mechanisms; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to a mechanism for opening doors, such as thedoors of a garage, gates, or the like, which mechanism is operated bythe depression of a lever which is positioned in a roadway, so that avehicle may be driven thereover, for opening the door of a garage, foropening a gate or analogous structure.

Another object of this invention is to provide a door operatingstructure as specified, which includes a disk, or wheel, to which an armis'eccentrically connected, which arm is in turn connectedto the doorsection so that during the rotation of the disk, the

doors will be opened, and further to provide a weight which is carriedby a chain. and rotates the disk upon release of the disk fromengagement with its restraining means, which restraining means isreleased by the depression of a pedal positioned in the roadway leadingto the garage or gate.

VViththe foregoing and other objects in view, this invention consists insuch novel features of construction, combination and arrangement ofparts as will be hereinafter more fully described, illustrated in theaccompanying drawings and claimed.

In describing the invention in detail, ref erence will be had to the.accompanying 1 drawings wherein like characters designate like andcorresponding parts throughout the several views, and in which Figure 1is a perspective view of a garage, and the portion of the road leadingthereto showing the pedal in position; Fig.2 is a horizontal sectionillustrating the door structure in an open position, in plan;

line 33 of Fig. 2,

F igr 4 ,is a section through the weight,

showing the manner of attaching it to the chain;

Fig. 5 is a fragmentary vertical section,

Specification of Letters Patent.

Fig. 3 1s a vertical section taken on the Serial No. 156,413.

' a modified form of the invention;

Fig. 9 is a vertical section through part of the modified form of theinvention show ing the remainder in edge elevation.

Referring more particularly to the drawings, 1designates a garage, ofany ordinary construction, which has doors 2 and 3. The doors 2 and 3.are constructed of a plurality of hingedly connected sections t and 5 asclearly shown in Fig. 2 of the drawings, and if it is so desired,suitable rollers or analogous guiding members indicated at 6 may becarried by the upper inner corners of each of the door sections 5 forguiding the movement of the door sections. The door sections 5 arehingedly connected to the door body or garage structure. The doorsections I 4 of the door 2 have a rod 10 connected thereto, which rod isconnected through the medium of a pivotal joint 11 to an arm 12. The arm12issecured to a disk 14.- eccentrically of the center of the disk asindicated at 15 so that when the disk is rotated, the arm 10 will beoperated for moving the door sections 2 into an opened position as indicated in Fig. 2 of the drawings.

The door section 4: of the door 2yhas an arm 16 connected thereto andpositioned beneath the door sill, to which arm a link 17 is connected.The link 17 is connected as shown at 1S to an arm 19 which is connectedto the. section 4 of the door 3 for moving the sections 4c and5 of eachof the doors 2 and 8' in unison upon the rocking movement of the arm 10.

The disk 14: is rotatably supported by a pin 20 which pin is in turnsupported by a suitable bracket 21. The disk it has a pair ofdiametrically opposed notches 22 formed in its periphery, in whichnotches the head 23 of a pawl 24: is adapted to seat for restrainingrotarymovement of the disk. The pawl 24 is pivotally mounted upon a pin25, as clearly shown in Fig. 3 of the drawings, and it has a coupling 26connected to its end remote from the head 23.

The coupling 26 has a rod 27 adjustably Patented Nov. 2th 1217.

connected thereto by means of screw threads as shown at 28. The rod27extends downwardly, through the horizontal portion 29 of an anglebracket 30, and it hasa collar 31 mounted thereon against which one endof a coiled spring32 engages. The other end of the coiled spring 32engages theunder surface of the horizontal portion 29 and the springtends to hold the rod. 27 downwardly for meving the head 23 of the pawl24 into oneoof the notches 22.

The disk 14: has teeth 33 formed upon its periphery, which teeth meshwith the links 3-1 of a chain 35 which chain hangs downwardly from thedisk as clearly shown in Fig. 3 of the drawings. A weight 36 is providedwhich has a vertically extending op'ening. 37 formed centrally thereinthrough which the chain 35 extends. A pairjof upstanding oyosss arecarried by the weight 36 and a pin 39 is inserted through the eye 38andone of the links 34 or the chain 35 for connecting theweight 36 tothe chain.

When the pawl 24- is pivota'll'y moved for moving the head .23 out ofone of the notches 22, the weight 36, will, in moving downwardly, rotatethe disk 14; which will operate the ai m 10 for moving the door sectionsa and 5 of the door 2 into an open position and the movement of the doorsecti'ons and 5 of the door "2 will through the co'iinection of the arms16, link 17 and arm 19, move the door sections 1- and 5 door 3 intoanbpen position. v V

The red 27 ismoved vertically, for rocking the pawl 24-, by thedepression of a pedal 10 which is positioned in one of the tracks of aroadway indicated at 4-1, which leads of the to the garage 1, The pedal10 is carried by'afbell crank 42 which is pii 'otally mount ed as shownat 43 within a box M whieh is embedded in the road bed. A suitable coverplate 455 is provided for the box as. p The bell crank 42 has a rod 16pivotally connected thereto as shown at 47 Which itod .eXtehds underground, to beneath the "sill indicated it is, of the door striicture,

' V where it is connected to the bell crank 19.

Tlrebell crank 4:9 is pivotally mounted as shown at 50 within a box 51'.Tliearml52 of the bell crank 49 is connected to the lower "end or therod 27 so that upon the depression of the pedal. 40, by a vehiclepassing there over the rod 27 will be moved upwfarii'ly; through themedium of the bell cranks 12 and 49 and the rod 46, forre- 'leasing thedisk 14 from the restraining action of the po'wl 2 4, anor which thedisk will be foamed, oy the weight 36 falling dbwnwai'dly which rotationwill open the doors p'revieusly described.

The rod 27 has aliandle53 attached thereto' at a convenient height fromthe ground,

to be reached by the hands of a person,

which rod entehds through an "opening 54 spring i 1 In Figs. 8 and 9ofth'e drawihgsfa'iflodi wardly to the upper limit "of without rotatinthe disk 60,

formed in one side of the garage 1. The opening 54 is of sufficientlength to permit the rod 27 to be moved Vertically manually, formanually releasing the disk 14 from the restraining action of thepawl24, when it is desired to open the door and enter the garage on foot. Alock structure of desired type, as indicated at 55 may be provided forlocking the rod 53againstmovement, and consequently looking the rod 27against movement, which will prevent the opening of the doors, 7 a

After the doors have been opened they areclosed manually and the deviceis reset by removing the pin 39, and raising the \ieightBG upwardlytothe upper ended" the vertical run 35got' the chain 35. rod 27 is movedlnto its normal position bylthe tied itermof the invention isshown-"which s constructed so that the; devle'ein'a'y be reset bypulling downwardly upon the run of the chain which is positioned uponthe opposite side 6f the 'eenter'of the sprocket over which the chain"travels; from the weight. 4

In the modified form,- a disk'GO lepro- ,vided, which is mounted uponshaft 61.-

Thedisk"60 has a rod eaoonnootod thereto as shown "at 63. The idd 62corresponds to the disk and is provided for operating the doorsections;The disk 60 is provided with notches 6 i formed in "the peripherythereof, eel-responding to and serving the same functidn as thenotches-22.- The disk 601m an angularly disposed annular flange 65formed above the periphery of the Seine, which overhangs thei' atchetee.Tlieratchet'fiti is also mounted upon the shaft 61 and connected-to thedisk 60throt1gh the medium'or pains 67. The pawls 67 arep'iv'otallyconnected as shown at 68 "to the inner "circumference of the flange '65and they enga e the periphonn notches of the ratchet 66 for connect ingthe ratchet to the: disk. A "sprocket wheel 69 'i'sfa'lsohiounted uponthe shaft-6l and it "is connected to the ratchet'66 forrotationth'erewith; Tho-chain to passo's about the sprocket 69 and ithas a weight 71 mounted thereon. The chain 70'i's identical with andserves the same fuh'ction' as the chain '35 while the weight"71is"identical withthe Wei'ghtfih. i V v In theinedi'fiediorm of theinvention;

wh'oi it is desired to l o'sottho doVioa-the run 7 -72 or the charmwhich ispositionedup'onthe opposite side of the center of thesprocketi69 from the run or the to which theweight 71 is connected, ispulled downwardly and [since the sprocketis connected to the disk 60only through the medium-of the pawl 67, the weight may be pulledu'powingto "the its movem nt 1 V fact that the pawl 67 will ride over theratchet teeth of the ratchet 66.

From the foregoing description taken in connection with the accompanyingdrawings the advantages of construction and of the method of operationof the improved stay bolt will be readily apparent to those skilled inthe art to which this invention appertains, and, while in the foregoingdescription, the principle of the operation of this invention has beendescribed together with various features of construction, it is to beunderstood that certain minor features of construction, combination andarrangement of parts may be altered to suit practical conditionsprovided such alterations are comprehended within the scope of what isclaimed.

WVhat is claimed is 1. In a door operating structure, the com bination,with a door, of a rotatably mounted disk, means for restraining rotationof said disk, an arm eccentrically connected to said disk, a rodpivotally connected to said arm and to said door for moving said doorinto an open position upon rotation of said disk, means for rotatingsaid disk upon movement of said restraining means into an inoperativeposition, a pedal, and means operable by the depression of said pedalfor moving said restraining means into an inoperative position.

2. In a door operating structure, the combination, with a door, of arotatable disk, an arm eccentrically connected to said disk, a rodpivotally connected to said arm and to said door for moving said doorinto an open position upon rotation of said disk, peripheral teethformed upon said disk, a chain for engagement with said teeth, a weightcarried by said chain for moving the chain for rotating said disk uponrelease of the disk from said restraining means, a pedal,

. and means operated by the depression of said pedal for moving saidrestraining means into an inoperative position.

3. In a door operating structure, the combination, with a door, of arotatable disk, an arm eccentrically connected to said disk, a rodpivotally connected to said arm and to said door for moving said doorinto an open position upon rotation of said disk, peripheral teethformed upon said disk, a chain for engagement with said teeth, a weightcarried by said chain for moving the chain for rotating said disk uponrelease of the disk from said restraining means, a pedal, means operatedby the depression of said pedal for moving said restraining means intoan inoperative position, and means for moving said restraining meansinto an operative position immediately after the release of pressurefrom said pedal.

4. In a door operating structure, the combination, with a door, of arotatable disk, an arm eccentrically connected to said disk, a rodpivotally connected to said arm and to said door for moving said doorinto an open position upon rotation of said disk, peripheral teethformed upon said disk, a chain for engagement with said teeth, a weightcarried by said chain for moving the chain for rotating said disk uponrelease of the disk from said restraining means, a pedal, means operatedby the depression of said pedal for moving said restraining means intoan inoperative position, means for moving said restraining means into anoperative position immediately after the release of pressure from saidpedal, and means for manually removing said restraining means into aninoperative position.

In testimony whereof I aflix my signature in presence of two witnesses.

FREDERICK L. CHAPMAN, JR.

Witnesses:

ALBERT E. LIND UIST, Boer. P. TELLY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

